Vacuum pump advice needed

I am almost 2 yrs post prostate surgery, radiation and 2 hormone shots. I have had no luck getting a usable erection. I have a quality manual vacuum pump that doesn’t give me enough, I’ve tried Bimix and Trimix , Viagra, etc no luck . Before I give up has anyone tried a manual pump then bought a battery powered one ? Willing to try if maybe they work better, many of us have problems with the pump even when used correctly the girth at the base begins to hurt before you get proper length and after 2 yrs I’ve probably lost an inch or more , hate to give up, my wife doesn’t suffer like I do she’s ok at 69 or having sex but it efft me every day. I have to accept this eventually but not easy